Improvement in grain-drills



CHARLES E. PATRIO AND JAMES S. BOGLE, OF SPRINGFIELD, OHIO.

IMPROVEMENT IN GRAIN-DRILLS.

Speciiication forming part of Letters Patent No. 168,91 8, dated October I9, 1875; application led May 18,1875.

To all whom it may concern:

Be it known that we, CHARLES E. PA'rRIo and JAMES S. BQGLE, of Springfield, countyy of Clark and State of Ohio, have invented certain new and useful Improvements in Grain- Drills, ofwhich the following is a full, clear, and exact. description, reference being had to the accompanying drawing, making part of this specification, in which- Figure lis a perspective view of so much of a grain-drill as is necessary to show our invention. Fig. 2 is a side elevation of the same with the drive-wheel removed. Fig. 3 is a plan view, partly in section. Fig. 4 is a perspective View ofthe rack-bar and its guiding plate. Fig. 5 is a perspective view of the pivoted gear-cover, and Fig. 6 shows the manner of keying the removable pinions to the distributer-wheel shaft.

Similar letters of reference denote corresponding parts wherever used. 'i The invention relates to a novel means for holding in place upon their shaft the removable pinions, through which motion is imparted to the distributer-wheel shaft, and through the removal and changing of which the feed of the dstributer-wheels is regulated, as desired, whereby the operation of changing the pinions is greatly facilitated, while at the same time the gearing is effectually protected from dirt and other obstructing matter. It further relates to the construction of the gear easin-g or cover, the same being made partly fixed and partly pivoted in the mannerand for a purpose that Willebe explained; andthe 1nvention further relates to the construction of the retaining-rack, forming one of the shipping devices and connecting the shipping-lever with the lifting-roller, as hereinafter described.

In the drawing, A represents a rectangular main frame, B B' the main driving and carrying wheel, O the grain-box, and D the main drive-wheel axle, all of usual or any preferred construction and arrangement. The axle D is by preference made in the form of a stationary stub-axle set in a recess in the under side of the main frame, and rigidly secured by boxes or otherwise. To the inner end of the hub of wheel B is rigidly secured a spur-wheel, b, through the relation of which motion is imparted to a pinion, b', mounted loosely on a pin or stud at e, formed upon or attached to a lever, E, pivoted on the axle D, and moving on said axle as a center. The lever E, near its outer swinging end, is provided on its .inner face with one or more teeth, which engage with teeth formed on a rack-bar, F, for holding said swinging end of the lever E at any desired point of adjustment, as hereinafter explained. The pinion b1 engages with and imparts motion to a pinion, b2, keyed to the distributer-wheel shaft Gr as follows: The hub on the inner face of the pinion is cut away dialnetrically, leaving the inner adjacent faces of the remaining crescent-shaped portions of the hub parallel with each other, and the shaft G is provided with a fixed collar,"g, matching `the socket thus formed in the hub, as shown in Fig. 6, and insuring the rotation of the shaft with the pinion, vwhile at the same time permitting 'the ready removal of one pinion and the putting on of another of different size. The end plate O of the hopper is provided with a pendent bearing for the distributer-wheelshaft, (shown in dotted lines, Fig. 2,) and at its rear edge has secured to it the upper ends of plates h h1, formed in the arc of a circle, of which the main drive-wheel axle is the center, the former hbeing made fiat and secured to the hopper end and to the framebar, and the latter, h1, being made angular, as shown in Figs. l, 2, and 3, and secured to the plate h at its upper and lower ends, the two forming a guide for the lever E and rack-bar bar F, and the latter, h1, forming, also, the fixed part of the casing or cover for protecting the gearing. To the forward foot of the end plate U is pivoted a cover, H, provided on its upper edge with a horizontal liange, i, which overhangs and protects the gear b2, the vertical portion or side of said cover extending' down at the sides of the pinions b1 b2, and protecting the same, and a boss, il, formed on the inner vertical side of said cover,A rests against the pinion b2, and serves to hold it in 4 H when in place, preventing lateral `displacement of the latter, and a spur, '4,011 the coverplate H, rests upon the angular shoulder of plate h1, determining the position ofthe cover when in place, while at the same time formin g a handle for conveniently raising the cover on its pivot when it is desired to release and remove the pinion b2. The curved plate h is provided with a longitudinal slot formed in the arc of a circle concentric with the plate, with its upper end expanded obliquely, as shown at h4, Fig. 4, and pins ff', formed on the inner side ofthe rack-bar F, pass through said slot for guiding the movements ofthe rack-bar. The pin f is connected with a lug or ear on a pendent cam-hook, lo, which is vibrated by a pin, l, on 'the lifting-roller L, the arrangement being similar to that described in Letters Patent granted to C. E. Patric, December 29, 1868, No. 85,472.

,In said Letters Patent, in lieu of the ratchetbar F a bar or plate was shown notched or recessed `at regular intervals, designed to perinit the adjustment of the shipping-lever relatively thereto to conform to certain different `sizes of pinions to be employed on the distributer-shaft, the notches being so spaced on the bar as to cause the adjustment of the lever relatively to the bar to exactly accommodate `such different sizes of pinions as were determined l upon beforehand, and, consequently, no other sizes of pinions could be used. In addition to this, the hopper end and the notched bar, being made separate from the axle on which the shipping-lever has its fulcrum, the relation of fulcrnm or axle to the distri buterwheel shaft was liable to be varied slightly in setting up the machine, and a variation of a sixteenth of an inch, more'or less, one way or the other, caused the lever, in order to engage with the notched har, either to make the gears b1 and b2 to mesh too deeply, and thereby to cut into each other and to work h-eavily,o1 else they failed to properly engage and were liable to be broken or made uncertain in their b2, may be placed on the distributer-shaft and the lever E raised until the transmitting-pinion meshes properly therewith, when the lever will be held at such point of adjustment by the teeth thereon being forced into engagement with theratchet bar or plate F by a spring-,ftA

By this construction any size of pinion b2 may be employed for changing the feed, limited only by the extent of throw of the lever E; consequently amuch greater number of variations in the feed is attained, While at the same time the operation of changing the pinions for varying the feed is greatly facilitated. u

Having now described our invention, what we claim as new, and, desire to secure `by Letters Patent, is-

1. In a Seedingmachine, the pivoted cover- `plate H, in combination with the removable pinion b2 on the distributer-wheelshaft, for

protecting said pinion and holding it lin` place on its shaft, snbstantiallyas described.

2. The divided cover H h1, partly lxed` and partly pivoted and movable, for protecting the gearing and permitting the removal ofthe pinion on the distributer-Wheelshaft, asdescribed.

3. The ratchet-bar F, constructed as de#` scribed, in combination with the shipping-lever E, for permitting the change of pinions and for holding said lever E at any desired point of adjustment, as described.

,0. E. PATRIO.

JAMES S. BOGLE. Witnesses: 4

Ronin. C. RonGERs, A. T. BYRN. 

